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[Conversion]: XLSX wide table overlapping text / broken column layout #82
Description
Source document type
XLSX
Authoring application
Generated programmatically (e.g. OpenXML SDK, EPPlus, NPOI)
Authoring application version
No response
MiniPdf version
MiniPdf CLI 0.34.1,
Environment
MiniPdf Web demo, MiniPdf CLI
Runtime or host details
MiniPdf CLI 0.34.1 (Native AOT), standalone binary — no separate .NET SDK/runtime on host
Operating system
macOS 26.5.1 arm64
Minimal test example
chmod +x minipdf
./minipdf convert 20mb.xlsx -o 20mb.pdf
Open 20mb.pdf and compare with the source 20mb.xlsxInput
• File: 20mb.xlsx (~20 MB)
• Type: multi-column text spreadsheet (names, addresses, phones, job titles)
• Authoring: generated programmatically (creator=Unknown Creator)
Output
• PDF is created successfully
• Layout is broken: columns overlap, text is smashed together, not readable like Excel
Expected
• Columns aligned in a table layout similar to Excel / LibreOffice PDF export
Actual
• Overlapping/garbled text (see attached screenshot)
Input and output files
input file ->
output
Additional context
Activity
shps951023 commentedon Jul 2, 2026
@NaveenChandraAdhikari please try latest version
NaveenChandraAdhikari commentedon Jul 3, 2026
@shps951023
Tested v0.35.1 on macOS ARM64:
ORIGINAL XLSX
AFTER CONVERSION
ORIGINAL XLSX
AFTER CONVERSION
shps951023 commentedon Jul 6, 2026
@NaveenChandraAdhikari please try latest version and feel free to give feedback 🙌
NaveenChandraAdhikari commentedon Jul 6, 2026
@shps951023 tried with the latest version still same issue persist of columns overlapping and missing
shps951023 commentedon Jul 7, 2026
@NaveenChandraAdhikari please provide your file
NaveenChandraAdhikari commentedon Jul 8, 2026
5mb.xlsx
sample_test_data_5mb.xlsx
NaveenChandraAdhikari commentedon Jul 12, 2026
@shps951023
shps951023 commentedon Jul 15, 2026
@NaveenChandraAdhikari please try latest version
NaveenChandraAdhikari commentedon Jul 26, 2026
Tested v0.37.0 on 5mb.xlsx
better than before (no blacked-out headers / columns not totally missing), but multi-column rows still collide: text runs together, headers truncate (Description → Descriptio), still unreadable as a table
shps951023 commentedon Aug 11, 2026
@NaveenChandraAdhikari I tried my adobe pro and office 365 exported file like:
Did you set special properties?
NaveenChandraAdhikari commentedon Sep 7, 2026
No additional properties. I’ll try again and ping you if I run into same issue